Apparatus for production of oxides



Aug. 29, 1933.

E. M. LOFLAND 1,924,126

APPARATUS FOR PRODUCT-ION OF OXIDES Filed April 30, 1928 0 in form, with a Patented Aug. 29, 1933 APPARATUS FOR PRODUCTION OF OXIDES `M. Lolland, Chicago, VIll.

V'Application YApril 30, 1928. Serial No.

` 9.(llaims. (Cl. 21S-#287) This invention relates to apparatus for the production of oxides from metals. `The subject matter of the presentapplication a part of my copending application 14, 1926, on which Letters Patent of the United States No. 1,689,951 were issued to me on October 3o, 192s. Y

A general object of the present invention is the Aprovision of an apparatus whereby oxides 'may be rapidly produced and recovered, as from met-4 als, under controlled conditions.

Other and further objects will be pointed outhereinafter, or will appear to one skilled in the art on an understanding of the invention' or its employment in practice.

ited to this ment.- p n In ther drawing the figure represents a sectional elevation of an 'apparatusfthe illustration being largely diagrammatic.

"An understanding of numeral 10 designates to the side Wall 11. On top ofthe side Wall is a rail 19 on which runs the anged wheel 18 that supports the outer end of a revolving carriage 16. This carriage is supported at its inner end by a post 17 at the center of the basin. V A motor 25, mounted on the carriage, drives suitable gear- 22 is provided, whereby the latter 1s rotated on its longitudinal axis. A screw conveyor 27 is mounted on the carriage, and is provided with discharge openings Y 27a distributed along its lengthso that fragmentary material fed into the conveyor from the hopper 26 may be dis- 0 charged with suitable distribution `over the bot- :tank 20 from which indicated or orlb'asin, circular bottom sloping from the center .Y

idle, as desired. A spray pipe 21 1s supported on the carriage and extends radially of the basin,and is connected with a liquid may be supplied to the spray pipe. The side 11 of the basin is provided with suitable discharge apertures 14 distributed thereabout, through which liquid may be rdrained from the bottom of the basin and discharged into a launder 15, from which it is'conducted away.

As an illustration 'carriage `16 is revolved about the basin. The wetted kiron is left exposed in the air for such a period oftrne as Will l of a coating of oxide on the particles.

in the bed upon 'one another, thus scouring 01T the oxide coating by attrition. At the same time, the particles which are being stirred in tervals. It will be understood that after the submitting of the particles to the agitation as above described, and the spraying of them with the liquid, they remain in the wetted condition from the spraying, so that the process of oxidation of their now exposed surface portions is immediately resumed. The carriage may continuously in its rate of travel'being timed toailow for oxidation of the material in the bed to the desired extent. the quiet portions of the bed the oxidation goes on continuously, while at the same subjected to the action of the agitator, the detachment and recovery of the oxide goes on con-` tinuously. As the particles are gradually 'reduced in size by the formation and separation oi the oxide, the bed is replenished by the distribution thereon of fresh particles rof iron by operation of the conveyorv 27, Consequently, it will be seen, the Vapparatus may be operated continuously Ytc effect a continuous formation and recovery'oi the oxide.'`

.What l2 claim is: Y l.' Metallurgical apparatus comprising, in combination, a basin adapted to support a bed of fragmentary material, an agitator having a reach limited to onlya minor fraction cf thebasins length, a carriage supporting the agitator and progressively yover thebasin to travel the fughout the length of the bed, means for prope ng the carriage, and means for imparting individual movement to the agitator to agitato localized. portions of the bed energetically during progressive movement of the agitator and carriage and a liquid distributing device movable with the carriage in position to discharge liquid on the fractional portion of the bed undergoing movable agitator agitation .by ythe agitator, the basin beingV arthe bed.

and includdistributing the'bed for replenishranged for Vdischarge o liquid from 2. Apparatus as specified in claim 1 ing also meanson the carriage for fragmentary `material over` ment thereof@` Y 3. Metallurgical apparatus comprising,- bination, a basin adapted to support a fragmentary material, movable progressivelyV over` the basin, an agitator rotatably mounted on the carriageand having Astirring armsV extending only a minor fraction of the in combed of time in the portion 'over the basin,

beds length, means for propelling the carriage progressively over the bed to transport the agitator throughout the entire length thereof, means for imparting rotary movement to the agitator to stir material in the bed energetically during progressive movement of the agitator with the carriage and a distributor carried by the carriage and adapted to shower liquid upon the localized area of the bed `undergoing stirring by the agitator. Y

4. Apparatus for production of hydrous oxides comprising, in combination, a basin having a draining bottom, a carriage arranged to travel an agitator carried by said carriage foroperation in the basin, means for actuating the agitator and propelling the carriage, a distributor arranged to shower liquid into the basin Vin proximity to the agitator, and means for supplying liquid to operation of the same and the agitator.

5. Apparatusas specified in claim'av and including a conveyor carried by the'carriageV and operable to discharge comminuted material in the basin', and

v6. Apparatus as specified in claim 4 and Vincluding a trough intowhich the basin drains.

Y7. Apparatus as specified in claim aand in which the agitator has rotary Voperation on an approximatelyhorizontal axis.

8. Apparatus as specied in claim 4 and including a discharge receptacle into which the with the liquid container and discharge outlet for supplying Vliquid* above the basin, and means from the liquid container to the distributor.

9. Apparatus for production of hydrous oxides comprising, in combination, a `basin having' a sloping bottom for supporting a bed of material, a trough extendingA along the lower .margin of the basin to receive material ushed therefrom, a carriage arranged to travel above the basin, an agitator extending across the basin and carried by the carriage for rotation on an approximately horizontal axis, means for actuating the agitator and propelling the carriage, and means io'r flushing the portions of the bed vundergoing agitation by the agitator. f

m :ri/iin MILOFLAND.

the distributor during means for actuating the conveyor.

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